Cotter.



No'. 895,812. PATBNTED AUG. 11, 1908.

Y c. CHAMBERS, JB..

CUTTER.

APPLIOATI'ON Hmm 151111.27, 190e.

l TTOHNE.

wir/fesses:V Imran l a citizen of the- United new andnsefulCotter, ofwhich re'ady in place of-solid l:

' sTArns PATENT -Jonricn.

n cYRUs onAi/iBERs, JR., or OVERBROOK, PENNSYLVANIA.'

co'r'rnn.

V Neissa-842. i

' To all whom' it may concern.`

Be it known 'that'L CYRUs CHAMBERS, Jr., States, residing atOverbrookfin the' county of Montgomery and State of Pennsylvania, haveinvented a is' a specification. v

My invention relates to improvements in 'cotters 1 The object ofv thisinvention is to= provide a place the Working parts'of machinery.

' "v improved-Cotter is' adapted to be used pinsJ split pins, linchpins,jam nuts and the like. A

The ordinary split pin or cotter pin is frequently objectionable for oneor more of the Ytions of vio elevation with a different *mechanism Fig.-12 is' i same. Figs. 13, 14, 15

intothe hole prep *following reasons; because of the very lime ited:amount of wearingwsnrface.exposed to the moving' parts, because of thelliability to rust fast and become racticably'immovable, because of thedifliculty'and expense of drillinglthe stud or vshaft centrally and inline withthe face ofthe cause of the dilicult of enterlng the' cotter eared therefor, and the liability of its Working` out unless the s 'litend is spread. 0pen,' in wl 1ich case itis di cult to .The 'urpo'se ofmy inventionis to obviate all offt e- -above recited objections'.

` 'gnre 1 is Referring to the drawin "sz`fF fr ont elevation of one formof -my cotter.` Fig. 2 -.-1 `s a side "elevation of sameg-Fig: 3

is a front elevation lofa cotterwith asso-- Y ig. 41s' a sideelevation"- Figs.` 5, 6,-'7 and 8 arefront elevaciated mechanism. l' .ofsame.

m'odied forms .of cottrs.. Fig-9 is a front elevation of the' 8With'associated mechanism. v4Fig,' 10 is a side elevation of san'ie.-Fig. 11 `is "a, front a side'` elevation of forms of cross-section'.of'rnetal from.-Which` the cotter mayy b made. 1 17 isa frontelevation of a cotter in conn'ectlonwith a n'ut.

Fig. 18 is aside elevation ofsarne.y Fig. 19

is a section on line ofFignl'? 4 Siinilarnumeralsrefer to':similarlvparts The simplest form ofmycotteris shownlin i Figs. 1, 2;, 3and 4, having a bowed portion-21 "at the top and oppositely'-'disposedsym-` 4.

:metrical cur'vedfportions` 22,L for, embracing and clampingtliestud...The Haring ends'23 Specification of Letters Patent. application filedSeptember 27,l 1906. i Serial No. 336,445.

the' following .and economical meansfor securing in Working partsandbecotte'r'shown in Fig; v'

form of' associatedI and 16 'are'diiiierent- Patented Aug. 1'1, 190s.

the cotter over the stud". The cotter is made preferably of spring metalof any c' form of cross-section, that is, it may'be made of round Wireas shown in crosssection in Fig. 13, round wire flattened as shown' incross section in Fig. 14, square wire as shownv in Fig.`f15 or narrowstrips of sheet metalr cut .Wider than-the thickness of same, as' shownin'Figml".

I' turn' an annular groove or channel in the sufficiently Wide toad-i'nit of the Width of the wire of which the cotter is-made, and ofsuch depth as to' give a good shoulder' to retain -the open co'tterv inlacehor of suchdiameter tight aro-und the neck thereof. The bow 21 'andthe ends 234 of the cotter project beyond `the `groeve to maintain themoving parts of the machinery, such as a Wheel or friction roller'26',connecting rod 27, or nut 28, in the required relative position.

or members thereof shall' be true arcs when side extension or memberthereof bent to conform to an arc concentricwith the arcs of theinterior members, and embracing'say three'fourths of the complete circlethereof,

'connected by. return bends, wherebythe Whole is allowed to o'ccupy butlittle room .around the y,s

face' thereof lyet 'allowing great .resiliency for the spiri11 3'ing ofthe cotter yovert1e' 'neck Aof .vor bolt .so as' to I'esistency of thesame vto. 'come nii. 'In cases I ,I nale a spring cotte'rofsquare orwire'whose thicknessis-'less than the are provided for convenience inspringingo-nvenient stud, axle or bolt 24, as the case may be,

vthat the cotter spring on it' and close- 4the stud-'orf` bolt.lSon'ietimes it is 'desirable 1 to have a Wheel or nutfseoure'd'on `tlle'stud great force' in' the `tend-' -suchj 'wiref' width t thereof, 4orin other Wordsbent 4'edgew1se, so 100 that, when a' groove isturne'din'the'stud or;

h e Wire, thus'permit- V ting one half t lock itself in. the .groovevandn the construction shown in Fig. 11, the bow is so formed that the`interior extensions sprung to the proper. diameterg and an outthe saidconcentric extensions or members Y tud or bolt, or'be'yond ythe surr-sh'earedi .throughout fthe whole-'length' emd or '.bplt before'llovv-1n- Vsection rejectingv to ferm a' L05 t er'ornntfrom com-' 1' Figi l17Infa construction .of'

The various forms of the bow of the Cotter. are to adaptfthe device tovarious require-1 ments, lthose requiring more resiliency are formedwith the greater number of coils or folds, varlying in length to suitthe situation.

What

' means for maintaining the' Cotter in position on the shaft. v 3f. TheCombination of a Cotter, and a shaft provided with an annular channel,the

Cotter formed with oppositely Cirved embracing extensions, andangintermediate resilient bow, the embracing extensions adapt-- ed toseat in the annular Channel'as the sole means for engaging the Cotterwith the shaft.

4. A Cotter consisting of a single strip of metal, includingin itsextension arcs of. substantially the same circle, and a resilient bow.intermediate two arcs, in Combination with a shaft having an annul-archannel for receiving said arc portions, the resilient co' o eration ofthe arcs in the channel being t e sole-means for securing the Cotter tothe 5. In vcombination withl a lshaft provided with an annular channel,a Cotter consisting ofa single strip of metal formedwith portions of itsextension in arcs of substantially the same Circle, with a spring bowtherebetween, the arc extensions adapted to seat `in the annularchannel, as the sole means for slons havlng a transverse dimension-greater than the depth 'Pof the channel.

6. A spring.cotter, provided with a curved extenslon or surface, andacoperatlii oppositely disposed extension to form a c amp n l therewith,spring means for connecting said'A two extensions, Comprising resilientextensions lying in concentric arcs,

, 7. A spring Cotter, provided with embracing extensions 'andganintermediate bow so engaging .Cotter with shaft, said arc exteni formedthat the interior members thereof- I I shall be in arcs of true circleswhen sprung tothe proper diameter, and an outside member thereof in 'thearc ofa concentric circle embracing approximately lthreequarters -of thecircumferencethereof, whereby the whole is allowed to occupy but littlespace around the stud or'bolt, or beyond the `surface thereof, yet'allowing`\great elasticity v for the springing of the Cotter over theneck 4of the stud or bolt.

cYRUs CHAMBERS, JR.

Witnesses: lv

MAE HoriMANN,

HowARD. S. OxIE.

